Amid mounting tension, North Korea has fired an unidentified projectile, reported South Korea's
Yonhap news agency.
According to the news agency, South Korean military sources said North Korea fired off what appeared to be a ballistic missile near the North Korean coast early Monday.
Earlier reports suggested that North Korean leader Kim has supervised test runs of new anti-aircraft weapons.
North Korea's official
Korean Central News Agency had said that Kim "watched the test of a new type anti-aircraft guided weapon system", which was aimed at "detecting and striking different targets flying from any direction".
Meanwhile, according to a transcript of a conversation released by US media last week, President Donald Trump called North Korean leader Kim Jong-Un a "madman with nuclear weapons" during a telephone call with Philippine President Rodrigo Duterte on April 29.
Duterte also echoed similar views saying, "Kim has a dangerous toy in his hands that could create so much agony and suffering for all mankind."
 "North Korean soldiers carry flags and a photo of late leader Kim Il Sung as they march across Kim Il Sung Square during a military parade")